Circulatory System Flashcards
considered closed because blood is confined to vessels and distinct from interstitial fluid
Human Circulatory System
Major organs of circulatory system (3)
Heart, Blood Vessels, Blood
Pumps blood to large vessels; Main organ of circulatory system
Heart
Chambers of Heart (4)
Right and Left Atrium (upper), Right and Left Ventricle (lower)
Largest artery
Aorta
Largest vein in the heart
superior vena cava
Kinds of circulation (2)
Pulmonary Circulation, Systemic Circulation
Network of tubes
Blood Vessels
Types of Blood Vessels (3)
Arteries, Capillary, Veins
Away from heart
Artery
Towards heart
Vein
Where gas exchange takes place
Capillary
Small unit of artery
Arteriole
Small unit of vein
Venules
Broken veins
varicose veins
Contents of blood (4)
Plasma, Erthrocytes, Leukocytes, Thrombocytes
Liquid portion of the blood that contains clotting factors, antibodies, hormones, nutrients, dissolved gases, waste
Plasma
RBC; contains hemoglobin and oxygene; no nucleus and only survives for 120 days
Erythrocytes
For oxygen carrying
hemoglobin
WBC; for fighting infection
Leukocytes
platelets; for blood clotting which is for prevention of blood loss
Thrombocytes
Lack of iron in blood
Anemia
More WBC than RBC
Leukemia
Bleeder’s disease; lack of fibrinogen in thrombocytes
Hemophilia
Abnormal heart beat
Heart murmur
Blockage of blood vessels
Heart attack
Location of heart
Thoracic Cavity
Size of heart
Closed fist
External anatomy of heart (3)
2 atria, 2 ventricles, auricle
Major veins of heart (2)
Super vena cava and pulmonary vein
Major Arteries of heart
Aorta and pulmonary artery
Prevents blood from coming back
valves
Heart valves (4)
Tricuspid, bicuspid, aortic semilunar and pulmonary semilunar valve
Measures blood pressure
Sphymomanometer
Accessory organs of Circulatory System (4)
Lymphnodes, Liver, Spleen, Kidney
